1. Faculty of Education, University of Primorska, Cankarjeva 5, 6000 Koper, Slovenia
2. Institute of Psychology and Education, Kazan Federal University, Kremlyovskaya 18, 420000 Kazan, Russia
3. Center for the Communication, Hearing and Speech Portorož, Sončna pot 14a, 6320 Portorož, Slovenia